diff --git a/pyopencl/__init__.py b/pyopencl/__init__.py
index 156a4de..c0a03da 100644
--- a/pyopencl/__init__.py
+++ b/pyopencl/__init__.py
@@ -149,7 +149,7 @@ from pyopencl.cffi_cl import (  # noqa
         _GLObject,
         GLBuffer,
         GLRenderBuffer,
-        _create_gl_enqueue,
+        _create_gl_enqueue, #not needed?
 
         ImageFormat,
         get_supported_image_formats,
@@ -160,6 +160,16 @@ from pyopencl.cffi_cl import (  # noqa
         GLTexture,
         )
 
+if _cl.have_gl():
+    try:
+        from pyopencl.cffi_cl import (
+            get_apple_cgl_share_group,
+            enqueue_acquire_gl_objects,
+            enqueue_release_gl_objects,
+        )
+    except ImportError:
+        pass
+
 
 import inspect as _inspect
 
diff --git a/pyopencl/cffi_cl.py b/pyopencl/cffi_cl.py
index dbbe762..3d9e240 100644
--- a/pyopencl/cffi_cl.py
+++ b/pyopencl/cffi_cl.py
@@ -1598,11 +1598,10 @@ class GLBuffer(MemoryObject, _GLObject):
     _id = 'gl_buffer'
 
     def __init__(self, context, flags, bufobj):
-        MemoryObject.__init__(self, bufobj)
-        c_buf, bufsize, retained = self._handle_buf_flags(flags)
+        MemoryObject.__init__(self) 
         ptr = _ffi.new('clobj_t*')
         _handle_error(_lib.create_from_gl_buffer(
-            ptr, context.ptr, flags, c_buf))
+            ptr, context.ptr, flags, bufobj))
         self.ptr = ptr[0]